查询词典 tip of drill

Common reasons for modifying these structures are to change tip projection, alter tip rotation, decrease the distance between the tip-defining points, reduce tip fullness, create a supratip break, and adjust the relationship between the columella and the alar rims.

改变这些结构的常见原因是为了改变鼻尖突出度，改变鼻尖旋转度，缩小鼻尖表现点之间距离，缩小肥厚鼻尖，形成鼻尖上区转折和调整鼻小柱和鼻翼环之间的关系等。

A calculation method for the ultimate tip resistance of rock socketed pile was conducted. The geostatic stress of soil and rock was considered as homogeneous load on the tip plane of the pile, and then the force of the pile tip was decomposed into some simple forces. According to the theory of slipping line, the most dangerous point on the tip plane of the pile was confirmed, and the stress of the point was obtained according to Mindlin solution.

为求出桩端极限承载力的表达式，本文将嵌岩段以上岩土层自重视为作用在基岩半平面上的均布荷载，把桩端合力分解为相对简单的荷载作用于基岩平面上，利用滑移线理论并通过叠加的方法分析出桩端基岩破坏时的最危险点。

The numerical results show that:(1) the throughflow wake is considerably influenced by the tip clearance. The low-kinetic-energy fluid accumulated in the shroud/pressure side of the unshrouded impeller, but in the shroud/suction region for 0.0 tip clearance;(2) there possibly exists an optimum size of the tip-clearance which is not the zero tip clearance to make the flow loss minimized.

研究结果表明，(1)NASA低速大尺度离心压缩机半开式叶轮的低速尾迹区在压力面与轮盖的角区，而相应的闭式叶轮的低速尾迹区聚集在轮盖的中心位置；(2)数值实验表明，叶顶间隙并非越小越好，可能存在一个最优间隙，使得叶轮流动损失最小。

The airfoil (18) includes a tip cap (32) extending between the pressure (20) and suction (22) sidewalls; and spaced-apart suction-side (34) and pressure-side tip (36) walls extending radially outward from the tip cap (32) to define a tip cavity (38) therebetween.

在压力侧壁(20)和抽吸侧壁(22)之间延伸着一个顶端盖(32)，从该顶端盖(32)沿径向向外延伸着互相间隔开的抽吸侧顶端壁(36)和压力侧顶端壁(34)，在它们之间形成一个顶端凹腔(38)。

It is indicated that this loss will not change with the increase of the Reynolds number but the intensity of the passage vortex increases with the decrease of the Reynolds number. The tip leakage flow will weaken with the increase of the passage vortex because of the interaction between the passage vortex and the tip leakage vortex, and the position of the tip leakage vortex is more close to the middle of the passage. In addition, the distributions of the total pressure loss and the flow angle at the exit of the cascade are influenced by the intensity and the position of the tip leakage vortex.

结果表明：对于间隙存在造成的流动损失，数值模拟结果与实验结果及 Denton的预测值都十分接近，基本上不随着雷诺数的变化而变化；但是，随着雷诺数的减小，通道涡增强；间隙泄漏涡在和通道涡的相互作用中，强度减弱，在叶栅出口处的位置更加靠近中叶展；出口处的总压损失和气流角的分布也由于间隙泄漏涡强度和位置的变化而发生改变。

It is difficult to drill or can not drill if we use routine methods, using through down-hole hammer air drill method not only raise rate of drilling, but also reduce pollution to the aquifer, promoting exploration and development for the deep underground water.

利用贯通式潜孔锤多工艺空气钻进方法不仅能提高钻进速度，而且能减少对含水层的污染，为深层地下水的勘探开发提供了技术支持。

Drill and drill bits, a bench drill press can also be a great addition to your shop.

手钻和钻头，钻床也可能是到你的店铺一个很棒的添加。

Cemented carbides product: Cemented carbides saw, blade, tool, drill bit, mould, Spray nozzle, seal, muzzle, hammer, Roller, rock drill, Semi-finished materials, Indexing blade, stick materials, long thin slice, plate, denticle piece, Impact drill, Ball, wooden blade, Ramming Mould, Valve, Boat pan and other products.

硬质合金制品：硬质合金圆锯片、刀具、工具、钻头、模具、喷嘴、密封件、顶锤、轧辊、钎具、坯料、可转位刀片、棒材、长条薄片、板材、锯齿片、冲击钻片、球、木工刀头、拉拔冲压模体、阀门、舟皿、非标准耐腐耐磨结构件及各种非标硬质合金制品、其它深加工产品

Scrap carbide recycling: tungsten steel, tungsten alloy scrap, grinding materials, waste PCB drill bits, tungsten carbide tools, tungsten scrap powder, tungsten carbide powder, tungsten steel scrap, carbide grinding materials containing tungsten scrap, alloy grinding material, milling insert, drill bits, cutter, CNC cutter, wire cutting tungsten steel molds, drawing dies, round cut knife, saw blade, top hammer, PCB drill bits, V-CUT knives, knife handle, high proportion of alloy, non-magnetic alloys, tungsten carbide powder, tungsten wire cutter, such as tungsten tool steel scrap.

废硬质合金回收：钨钢、钨合金边角料、磨削料、废PCB钻头、钨钢工具、废钨粉、钨钢粉末、钨钢废料、硬质合金磨削料、含钨废料、合金磨削料、铣刀片、钻头、立铣刀、数控刀具、线切割钨钢模具、拉丝模具、圆切刀、锯片、顶锤、PCB钻头、V-CUT刀、锣刀、高比重合金、无磁合金、钨钢粉末、钨绞丝等各种钨钢废工具。

When I purchased my new torch I also got an 1-1/16" drill bit with a morse taper on the end. I had to turn the taper off as my drill press would not accept this size. I turned it down to just over 1/2" in order to fit it in my drill chuck.

当我购买了我的新的火炬，我也得到一个1-1/16 "钻头与摩士锥度就结束，我已经把锥度小康作为我的钻床不会接受这样规模的，我把它下降到刚刚超过1 / 2 "，以适应它在我的钻夹头。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。